Post by mikaellindgren on Oct 31, 2018 12:09:37 GMT -5
I have a 372 and am using two active control loops, the sample heater and the warm-up heater. For the warm-up heater, there is a setting in which I can limit the max current to a value I choose. My question is if this choice affects the resolution of the regulation?
I have a 860 ohm heater and need only 10 mW of heater power. I have got it working by putting a 10 ohm resistor in parallell with the heater, thus bringing the total resistance to a suitable value for the warm-up heater. However, if I can limit the max current to e.g. 100 mA and operate with full resolution in this range, I can choose a different shunt resistor and burn less power.